BrandTech Scientific Dispensette III - Manual (Page 44)

44
Accessories
Discharge tube with Luer-Lock attachment for micro filter
Please follow general instructions when handling sterile media. The
increased flow resistance can lead to liquid leaking at the upper edge
of the dispensing cylinder. To keep any leaking of liquid to a mini-
mum, we recommend using gentle force when dispensing and the
use of a filter with a large filter surface.
Note:
The dispensing tube with a Luer Lock attachement enables the con-
nection of a microfilter for sterile filtration. The parts which come in
contact with the medium are:
Borosilicate glass, AI
2
O
3
-ceramic, ETFE, FEP, PFA, PTFE, platinum-
iridium and PP (Luer-Lock attachment).
Never use for:
- liquids attacking
borosilicate glass (e.g., hydrofluoric
acid)
- Peroxides, as they are decomposed catalytically
by platinum-iridium (e.g., H
2
O
2
).
Additionally observe the Operating Exclusions of the instrument and
micro filter.
Make sure that the sealing washer is inserted.
For mounting, push the dispensing tube with the Luer Lock (option-
ally with the SafetyPrime
™ recirculation valve) approx. 2 mm into the
valve block, and firmly finger-tighten the locking nut (page 38, Figs.
3 and 3’). Check the discharge tube (eventually the SafetyPrime
™
recirculation valve) for a tight fit. A commercially available sterile filter
can be mounted onto the Luer Lock connector.